PHYSIOLOGY
GASTROINTESTINAL PHYSIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What does the ileocecal valve do?
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Generates segmentation contractions.
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It restricts the reflux of colonic contents and especially the large number of commensal bacteria into the relatively sterile ileum.
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Segmentation contractions, which shift chyme from one side to the other and increase its contact with the mucosal surface.
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None of the above
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Explanation:
Detailed explanation-1: -Ileocecal valve plays a very important role in the regulation of intestinal transit. It acts as a barrier to delay passage for small bowel contents and hence increases absorption. It also prevents reflux from the caecum into the ileum[1, 2].
Detailed explanation-2: -Thus, anatomical consideration is given the so-called ileocecal valve because of interest in problems of acute large bowel obstruction. This structure supposedly prevents regurgitation of colonic material and gas into the ileum and so accounts for the status of “closed loop” in obstructive lesions of the colon.
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